1982 GS1100E carb line question

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  • Guest

    #1

    1982 GS1100E carb line question

    I saw in earlier posts that if running pods the two vent tubes can be removed. No worries. But there is also a tube in front of the carbs that I suppose hooks to the tank for vacuum. Does it? If so I would think I can just block it off, as I'll be using a Pingel petcock that is gravity fed. Anybody?
  • chuckycheese
    Forum Sage
    Charter Member
    Past Site Supporter
    • May 2002
    • 3869
    • The Gulf Coast of south Florida in the winter and northern Nevada in the summer

    #2
    Vacuum port

    You'll want to cap it for sure since the Pingel you'll be using isn't a vacuum type of petcock. (I think they make one but that's not the one you'll end up with.)

    P.S. If you were running a stock petcock, that's where the tube from the carb would connect.
    Last edited by chuckycheese; 06-09-2010, 02:53 PM.
    1980 GS1100E....Number 15!

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    • Guest

      #3
      Saw the answer

      Hey Chucky, thanks for the post. As I was looking at the carbs before putting them on I saw that that tube is a straight shot into the venturi area. Blocked it and siliconed it to be sure. The vent tubes I just removed, but I'm thinking of blocking those too, since I don't know what they're venting and I don't want dirt etc. getting pulled into them.

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      • rapidray
        Forum Guru
        GSResource Superstar
        • Oct 2006
        • 8195
        • So Cal

        #4
        Do NOT block the vent tubes!!!!!!!! Ray.

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        • chuckycheese
          Forum Sage
          Charter Member
          Past Site Supporter
          • May 2002
          • 3869
          • The Gulf Coast of south Florida in the winter and northern Nevada in the summer

          #5
          You bet!

          Originally posted by jareness
          Hey Chucky, thanks for the post. As I was looking at the carbs before putting them on I saw that that tube is a straight shot into the venturi area. Blocked it and siliconed it to be sure. The vent tubes I just removed, but I'm thinking of blocking those too, since I don't know what they're venting and I don't want dirt etc. getting pulled into them.
          You're welcome!! And, Ray's right!!
          1980 GS1100E....Number 15!

          Comment

          • Guest

            #6
            Nothing goes to the tank from the petcock or carbs. There is a line that goes from the petcock to the #2 carb. There is a drain line on the tank itself. Don't block this one off.
            Last edited by Guest; 06-10-2010, 12:13 AM.

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            • GSX550

              #7
              Yeah, you don't want to block the vent tubes as if you do, you wont be getting any fuel into the float bowls. You need the vents to vent the air that was in your float bowls to allow more fuel in.

              The pressure of gravity would not be able to overcome the pressure required to 'squash' the air inside the float bowls to allow more fuel in.

              If you were worried about contaminants the run small lines pointing down. This shoudl stop moisture and grit getting in. Probably not stricktly legal really as you would be venting gas to air which is a big no no.

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              • chuckycheese
                Forum Sage
                Charter Member
                Past Site Supporter
                • May 2002
                • 3869
                • The Gulf Coast of south Florida in the winter and northern Nevada in the summer

                #8
                Originally posted by GSX550
                If you were worried about contaminants the run small lines pointing down. This shoudl stop moisture and grit getting in. Probably not stricktly legal really as you would be venting gas to air which is a big no no.
                That's exactly the way it's done on the stock application!
                1980 GS1100E....Number 15!

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